Institution
Vestas
Company•Aarhus, Denmark•
About: Vestas is a company organization based out in Aarhus, Denmark. It is known for research contribution in the topics: Turbine & Wind power. The organization has 1075 authors who have published 1519 publications receiving 23285 citations. The organization is also known as: Vestas Wind Systems & Vestas Wind Systems A/S.
Topics: Turbine, Wind power, Turbine blade, Rotor (electric), Power optimizer
Papers published on a yearly basis
Papers
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07 Nov 2008TL;DR: In this paper, a method, system and computer readable code for diagnosis of pitch and/or load defects of e.g. wind turbines as well as wind turbines using said diagnosis method and or comprising said diagnosis system.
Abstract: The invention relates to a method, system and computer readable code for diagnosis of pitch and/or load defects of e.g. wind turbines as well as wind turbines using said diagnosis method and/or comprising said diagnosis system.
22 citations
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17 Dec 2007TL;DR: In this article, a method for surface treatment of a wind turbine rotor blade comprising a leading edge and a trailing edge separating substantially opposing first and second surfaces of said rotor blade is presented.
Abstract: The present invention relates to a method for surface treatment of a wind turbine rotor blade (1) comprising a leading edge and a trailing edge separating substantially opposing first and second surfaces of said rotor blade. The method comprises the steps of providing a wind turbine rotor blade, supporting said rotor blade at least at a root end and at a distal position along a longitudinal axis of the rotor blade and providing moveably arranged first and second surface treatment devices (24, 25) adapted to provide surfac treatment of the first and second surfaces of the rotor blade, respectively, wherein the first and second surface treatment devices are moved in opposite directions and towards the leading and trailing edges, respectively, during surface treatment of the first and second surfaces of the rotor blade.
22 citations
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12 Nov 2012TL;DR: A new method for controlling active power in HVDC grids has been tested on the meshed CIGRE B4 DC grid test system, based on the recently proposed undead-band droop control, which combines DC voltage and AC frequency droop.
Abstract: A new method for controlling active power in HVDC grids has been tested on the meshed CIGRE B4 DC grid test system. The control strategy is based on the recently proposed undead-band droop control, which combines DC voltage and AC frequency droop. It provides sufficient room for optimisation for both normal and disturbed operation. Its main features are flexibility, reliability due to distributed control, easy expandability of the system and minimisation of communication needs. The control technique has been tested and its effectiveness has been verified to demonstrate its suitability for application in future meshed HVDC grids.
22 citations
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23 Jun 2009TL;DR: In this article, a method for evaluating performance of a system for controlling pitch of a set of rotor blades for a wind turbine is disclosed, where the obtained parameter values are indicative for at least one load moment of the hub of the wind turbine, e.g. a yaw moment and/or a tilt moment.
Abstract: A method for evaluating performance of a system for controlling pitch of a set of rotor blades for a wind turbine is disclosed. The wind turbine comprises a hub adapted to carry a set of rotor blades. Obtained parameter values are compared with selected theoretical values, and the performance of the system is evaluated on the basis of the comparison. The obtained parameter values are indicative for at least one load moment of the hub of the wind turbine, e.g. a yaw moment and/or a tilt moment. The theoretical values correspond the expected values of the parameter values under the given wind conditions, and suitable theoretical values are selected on the basis of obtained information regarding wind condition, such as wind speed, wind direction, etc., at the site of the wind turbine. The method preferably uses measured values of flapwise load moments on the rotor blades.
22 citations
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21 Oct 2010TL;DR: In this article, the authors described a lubrication system for a gear system for wind turbine, which consists of a reservoir adapted to contain lubricant, first pump means arranged to supply lubricant from the reservoir to the gear system via a first fluid connection, and vacuum generating means arranged in fluid connection with the reservoir, thereby maintaining a total air pressure in the reservoir which is lower than an ambient pressure during normal operation.
Abstract: A lubrication system for a gear system for a wind turbine is disclosed. The lubrication system comprises a reservoir adapted to contain lubricant, first pump means arranged to supply lubricant from the reservoir to the gear system via a first fluid connection, and vacuum generating means arranged in fluid connection with the reservoir, thereby maintaining a total air pressure in the reservoir which is lower than an ambient pressure during normal operation. The lowered total air pressure in the reservoir draws lubricant from the gear system into the reservoir, thereby increasing the lubricant level in the reservoir and decreasing the lubricant level in the gear system, allowing the lubrication system to be operated in a ‘dry sump mode’. In the case of an emergency or during start-up the vacuum generating means is stopped, thereby increasing the total air pressure in the reservoir. This causes a decrease in the lubricant level in the reservoir and an increase in the lubricant level in the gear system, allowing the lubrication system to be operated in a ‘wet sump mode’.
22 citations
Authors
Showing all 1077 results
Name | H-index | Papers | Citations |
---|---|---|---|
Remus Teodorescu | 84 | 606 | 38521 |
Pedro Rodriguez | 67 | 496 | 24551 |
Saurabh Gupta | 38 | 545 | 5907 |
Florin Iov | 32 | 166 | 4225 |
Cher Ming Tan | 31 | 285 | 3666 |
Philip Carne Kjaer | 26 | 97 | 2315 |
Martin G. Evans | 25 | 55 | 4712 |
Peter Fogh Odgaard | 23 | 95 | 2515 |
Lars Helle | 23 | 72 | 2881 |
Torben Knudsen | 23 | 116 | 2157 |
Jan-Willem van Wingerden | 21 | 151 | 2554 |
Daniel E. Viassolo | 21 | 68 | 1125 |
Lars Finn Sloth Larsen | 20 | 73 | 1260 |
Anton Bech | 19 | 69 | 1128 |
Mark Hancock | 16 | 44 | 994 |